What I believe stays with you after you read, is the ways the author describes things. If he or she describes something so clear we can imagine being in that exact spot or situation, it makes us understand the story/book much better. Also the main idea of the story, if it is something interesting to us we will remember the story much more. The lesson the author gives us can impact our way of seeing things, which is why we remember certain things from a reading. However, that is not always the case when we can’t remember certain things from a story/book it’s probably because we didn’t really understand what it was trying to say, it wasn’t giving us an idea of the environment with good descriptive words. Or simply because the theme and main idea doesn’t really interest us.